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AI · August 11, 2025

PromptFold

Free real-time, low latency lossless LLM prompt compression

PromptFold launched on August 11, 2025 with 6 votes. The site was still online in September 2026, 1 year on.

What it does

Compress your AI prompts to reduce token usage by 30-50% without losing any message information. Completely free during launch period - no cost at all. Tuned for support and task-oriented chatbot use cases.

Compress your AI prompts to reduce token usage by 30-50% while maintaining perfect semantic equivalence. Completely free during launch period - no cost at all.

PromptFold is prompt compression API for LLMs that is real-time, lossless and low latency. It dynamically reduces input token usage while preserving meaning and intent, and automatically optimizes prompts to reduce unnecessary output token count. PromptFold is fine-tuned for conversational LLM applications like support bots, task assistants, and interactive AI agents. Evaluated on thousands of real dialogues from industry-standard datasets—actual customer service and task-oriented conversations, tested end-to-end via our production API. MultiWOZ is a 10k-dialogue, multi-domain task-oriented dataset collected by University of Cambridge researchers, covering domains like hotels, restaurants,…from promptfold.web.app

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